Rasmus clausen hansen



(No Model.)

B. O. HANSEN & M HfBRUN-N.

OENTRIFUGAL GREAMER.

Patented Jan, 25, 1887.

I lJNrTE STATES PATENT Enron.

EASMUS cLAUsEN HANSEN, OF UTTERSLEB, AND MoETEN HANSEN BRUNN, OF HOESLUDE, LoLLAND, DENMARK, ASSIGNORS TO BUEEELL & WHIT- MAN, OF LITTLE FALLS,NEW YORK.

CENTRlFUGAL CREAMER.

SPECIFICATION forming part of Letters Patent No. 356,466, dated January25, 1887.

Application filed May 14, 1884. Serial No. 131,509. (No model.) Patentedin Denmark May 8,1882, No. 68-1; in Belgium October 31, 1882, No.59,253; in France December 14, 1S82,No. 151,509, and in Sweden August16, 1883.

T aZZ whom it may concern.-

Be it known that we, RASMUS GLAUSEN HANSEN and MoR'rEN HANSEN BRUNN,subjects of the King of Denmark, residing, respectively, at Utterslerand H orslunde,Lolland county, Denmark, have invented a new and usefulImprovement in Centrifugal Greamers, (for which we have obtained patentsin Denmark, bearing date the 8th day of May, 1882,No. 684; France,December 14, 1882, No. 151,509; Belgium, October 31, 1882, N 0. 59,253,and in Sweden August 16, 1883,) of which the following is aspecification.

This invention relates to an improvement in that class of centrifugalseparators in which an imperforate revolving drum or separating-vesselis employed for separating a compound liquid into its constituentliquids of dilt'erent gravities or densities.

The object of this invention is to simplify the construction of thoseparts of the separating-drum by which the denser liquid, which is forcedby the centrifugal force against the peripheral wall of the drum, isdischarged from the latter.

Our invention consists to that end of the improvements which will behereinafter fully set forth, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical section of ourimproved separator. Fig. 2 is arhorizontal section in line it 00, Fig.1, looking upward.

Like letters of reference refer to like parts in the several figures.

A represents the revolving separating-drum I or vessel, provided with ahub, a, by which it is secured to the vertical spindle b. The latter issupported in a step-bearing, B, provided with an adjustable screw-step,12, upon which the lower end of the spindle rests. 0 represents theouter imperforate wall 0 the drum A provided on its inner side withupright blades or wings a, by which the liquid contained in the drum iscompelled to revolve with the same.

1) represents the annular cover or top flange, secured to the upper endof the drum A by means of bolts or screws passing through the A cover Dand a flange, (1, formed on the upper end of the drum. The cover Dextends from the outer wall of the drum toward the axis thereof, and isprovided with a central opening or eye, 6, which surrounds the spindle.

F represents an annular chamber or trough formed at the inner edge ofthe cover D,around 5 5 the eye 6 thereof.

The chamber Fis made U- shaped in eross-section,and is turned with itsopen side toward the axis of rotation,while its upper, .outer, and lowersides are closed.

9 represents a number of -pipes,which are in 50 serted in openingsformed in the outer wall of the chamber F, and which extend toward andterminate near the outer wall of the drum A so as to receive at theirouter ends the liquid,

which is driven by the centrifugal force upwardlyalong the outer wall ofthe drum A towardthe cover D. This liquid is conducted by the pipes 9into the annular chamber F.

The outer wall, 0, of the drum A is made slightl y flaring upwardly toincrease the tend- 7o ency of the liquid to flow upwardly toward thecover D. The outer wall, c,is provided,un-

derneath the cover D,with an annular depression or groove, 0*,in whichthe Solid impurities collect,and which permits the outer ends 5 of thepipes g to be placed in line with the inner surface of the outer wall ofthe drum, thereby enabling these pipes to intercept the outermost layerof the densest liquid.

H represents a stationary casing or curb which incloses the drum A.

i represents the pipe through which the full milk or other liquid to beseparated is fed into the drum A.

j represents a stationary discharge-pipe having its mouth arranged inthe annular chamber F in Such manner that the liquid contained in saidchamber is driven by the rotation of the drum into the mouth of the pipej.

K represents a stationary discharge-pipe 0 having its inner end or moutharranged in the drum below the annular chamber F, in sucha position thatthe layer of light liquid which accumulates nearer the axis of rotation.upon

the outer layer of dense liquid is driven into the mouth of the pipe 70by the rotation of the drum.

If the machine is employed for creaming milk, the full milk enters thedrum through the pipe i and the cream is separated from the skim-milk bythe centrifugal force, the skimmilk being driven upwardly along theouter wal],c,of the drun1,while the cream collects on the inner side ofthe annular layer of skimmillc near the axis of the drum. The skimmilkenters the pipes g, by which it is conducted to the annular trough F,from which the skim-mill; is removed by the pipe j. The cream enters thepipe 7r,whercby itis removed from the drum.

The annular trough F can be cast on the cover D, and the pipes y can besecured in place by brazing or screwthreads, thereby simplifying thedischarge apparatus materially and reducing the cost of the machine.Upon removing the cover D the interior of the drum A and the under sideof the cover D can be easily and thoroughly cleaned.

WVe are aware that an annular trough in the eye of the separating-drumand a dischargepipe opening into this annular trough for the removal ofthe liquid therefrom are not new, and that a pipe extending from anannular chamber toward the periphery of the separating-drum for thedischarge of the heavy liquid is also old, and we do not claim either ofthese constructions, separately or broadly.

\Ve claim as our invention- 1. In a centrifugal separator, thecombination,with the rotating vessel A, made open at the top,of a cover,D, secured to the open top of the vessel A, and provided at its eye withthe annular chamber F,trough-shapedincrosssection and arranged with itsopen side toward the axis of rotation, and a pipe, 9, extending from theouter wall of the chamber F along the under side of the cover D,andterminating near the outer wall of the vessel A, whereby the heavyliquid is conducted from the periphery of the vessel A into the chamberF,substantially as set forth.

2. In a centrifugal separator, the combination,with the rotating vesselA, of a cover,D, provided at its eye with the annular'chamberEnough-shaped in cross-section and arranged with its openside toward theaxis of rotation, a pipe, g, extending from the outer wall of thechamber F along the under side of the cover D, and terminating near theouter wall of the vessel A, whereby the heavy liquid is conducted fromthe periphery of the rotating vessel into the chamber F, and astationary discharge pipe or conduit, j, projecting into the chamber F,whereby the liquid is removed from said chamber, substantially as setforth.

3. The e0mbination,with the drum A, having an internal annulardepression, 0 of a cover, D, provided with an annular chamber, F, and apipe, 9, extending from the chamber F toward the depression a",substantially as set forth.

Witness our hands this 7th day of April, 1884.

RASMUS OLAUSEN HANSEN. MORTEN HANSEN BRUNN. Witnesses:

Hans J ORGEN Hansen, THORVALD RASMUSSEN.

